Asymmetric Fraunhofer pattern in Josephson junctions from heterodimensional superlattice V_(5)S_(8)  

作　　者：Juewen Fan Bingyan Jiang Jiaji Zhao Ran Bi Jiadong Zhou Zheng Liu Guang Yang Jie Shen Fanming Qu Li Lu Ning Kang Xiaosong Wu 范珏雯;江丙炎;赵嘉佶;毕然;周家东;刘政;杨光;沈洁;屈凡明;吕力;康宁;吴孝松(State Key Laboratory for Artificial Microstructure and Mesoscopic Physics,Frontiers Science Center for Nano-optoelectronics,Peking University,Beijing 100871,China;Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(Ministry of Education),Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic Systems,and School of Physics,Beijing Institute of Technology,Beijing 100081,China;School of Materials Science and Engineering,Nanyang Technological University,Singapore 639798,Singapore;Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics,Peking University,Beijing 100871,China;Collaborative Innovation Center of Quantum Matter,Beijing 100871,China;Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China)

机构地区：[1]State Key Laboratory for Artificial Microstructure and Mesoscopic Physics,Frontiers Science Center for Nano-optoelectronics,Peking University,Beijing 100871,China [2]Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(Ministry of Education),Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic Systems,and School of Physics,Beijing Institute of Technology,Beijing 100081,China [3]School of Materials Science and Engineering,Nanyang Technological University,Singapore 639798,Singapore [4]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [5]Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics,Peking University,Beijing 100871,China [6]Collaborative Innovation Center of Quantum Matter,Beijing 100871,China [7]Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen 518055,China

出　　处：《Chinese Physics B》2022年第5期63-67,共5页中国物理B（英文版）

基　　金：Project supported by the National Key Basic Research Program of China(Grant No.2016YFA0300600);the National Natural Science Foundation of China(Grant Nos.11574005 and 11774009)。

摘　　要：Introduction of spin-orbit coupling(SOC)in a Josephson junction(JJ)gives rise to unusual Josephson effects.We investigate JJs based on a newly discovered heterodimensional superlattice V_(5)S_(8) with a special form of SOC.The unique homointerface of our JJs enables elimination of extrinsic effects due to interfaces and disorder.We observe asymmetric Fraunhofer patterns with respect to both the perpendicular magnetic field and the current.The asymmetry is influenced by an in-plane magnetic field.Analysis of the pattern points to a nontrivial spatial distribution of the Josephson current that is intrinsic to the SOC in V_(5)S_(8).

关 键 词：Fraunhofer pattern Josephson junction spin-orbit coupling homointerface 

分 类 号：O469[理学—凝聚态物理]